Abstracts
Mating in Dolly Vardens (Salvelinus malma) was studied in relation to individuals' dominance ranks in a landlocked population in south-central Alaska. Two types of tactics were adopted by males: pairing directly with a spawning female and streaking to a spawning pair. Average success in sperm release was 97% in pairing but only 47% in streaking, and depended on the distance to the female. The pairing tactic was mostly monopolized by males of primary and secondary dominance rank. These dominant males were the largest (≥210 mm in fork length) and the oldest (≥6 years) individuals. Their mating success per season was much higher than that of the smaller and younger males.
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Hino, T., Maekawa, K. & Reynolds, J.B. Alternative male mating behaviors in landlocked Dolly Varden (Salvelinus malma) in south-central Alaska. J. Ethol. 8, 13–20 (1990). https://doi.org/10.1007/BF02350124
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DOI: https://doi.org/10.1007/BF02350124